How To Write A Donor Thank You Letter . Being quick to reply will play a part in getting more donations. Focus on the donor when speaking about the impact, and less so on your organization. Mind Your Manners Thank Your Donors The Modern Nonprofit from themodernnonprofit.com Dear [person’s name], thank you for contributing to [whatever you needed the money/item for]. You can thank them by writing. If someone donates to your fundraiser, think of it as the beginning of a discussion.